Google Webmaster Tools Not Showing PageRank Pages for Some Sites?

When you login to Google Webmasters Tools and click on your "Crawl stats" under the statistics section, you are suppose to see a screen like this:

Notice it shows two tables, the first is for "The PageRank of your pages in Google" and the second is for "Your page with the highest PageRank." But some people are missing the "Your page with the highest PageRank" table. I see it on some of my reports but not all. For example, my web development company's site is not coming up with that table, as seen below in this screen shot: